'It's a hard time': The Block's Lysandra breaks silence over her split with husband Ben who's been left 'blindsided' over twin's decision to end their marriage

After Monday's confirmation of a split between The Block's Lysandra Fraser and her husband Ben Stevens, a close friend of Stevens has hit out at the mother-of-two, accusing her of 'blindsiding' her hubby with the split.

However, Fraser told Mail Online on Friday that the pair's separation was amicable.

'Things are amicable between Ben and I. It’s a hard time for us at the moment and we would appreciate people respecting our privacy,' she said.

The friend disagreed, telling The Advertiser on Friday that Stevens is furious with his ex-wife, who left him after the twins first appearance on the popular Channel Nine program.

'He’s still pretty shocked and upset by it all. He’s furious,' he said.

Blindsided: The Block's Lysandra Fraser with ex-husband Ben Stevens, who's friend is speaking out about the 'shocking' split

Shocked: Lysnadra (right) has hit back, saying the split of amicable

'There weren’t any attempts to get it back on track, it was ridiculous. If she fell out of love with him, then fine, but it was how quick it was...the show’s done — bang, it’s over.'

Looking after the children at their Adelaide home, while Lysandra competed on the show, is said to have put serious strain in the relationship.

'He worked really hard to look after the kids while she was gone. It’s just heartbreaking.'

The friend also accused twin sister Alisa of playing a part in the couples demise, after Ben had reservations of her taking time off to appear on the show.

'Ben told me that Alisa said if he didn’t let Lysandra do the show their marriage was probably over. They had a mortgage to pay for so he agreed to let her on the show.'

Happier times: Lysandra and Alisa with their children on Christmas day

The friend described the sisters as 'cut-throat' and 'go-getters' and said that has been their advantage on the show.

A Nine spokesman verified the seperation on Monday, saying: 'Yes, we can confirm that Lysandra has split from her husband but no we don't have any further comment.'

The high school sweethearts were married for five years and have two children, Emerson, three, and Cohen, two.

Reality TV's favourite feisty twins quit their jobs with the police force after their $395,000 win on the 2013 season of The Block: Sky High.

The south Melbourne apartment sold at auction for $1.435 million.

The Block: The twins at work on their Melbourne apartment on the Fans V Faves season